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| 联机分析处理数据立方体代数 |
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裴 健1,2, 柴 玮1,2, 赵 畅1,2, 唐世渭1,2, 杨冬青1,2
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1.视觉与听觉信息处理国家重点实验室,北京,100871;2.北京大学计算机科学与技术系,北京,100871
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| 摘要: |
| 数据立方体是多维数据库和以多维分析为基础的联机分析处理技术的核心机制.文章提出了一个支持多维数据库和多维分析的关于数据立方体的代数，从而为数据仓库及联机分析处理的语义描述提供了理论基础.同时，文章还论述了数据立方体的一些应用，以证明该工具所具有的强大功能. |
| 关键词: 数据立方体,代数,多维数据库,联机分析处理. |
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| 基金项目:本文研究得到视觉与听觉信息处理国家重点实验室开放课题基金资助. |
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| An Algebra for Online Analytical Processing Data Cube |
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PEI Jian,CHAI Wei,ZHAO Chang,TANG Shi-wei,YANG Dong-qing
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| Abstract: |
| Data cube is the central mechanism in multi-dimension database and online analytical processing (OLAP) based on multi-dimensional analysis. In this paper, an algebra for OLAP data cube is proposed, which supports multi-dimensional database and analysis. It can be the theoretical foundation of semantic specification of data warehousing and OLAP manipulations. Some applications of the new mathematical tool are presented as well to show the power of the contribution. |
| Key words: Data cube, algebra, multi-dimensional database, online analytical processing. |
